维普中文期刊产品整合服务
863篇 您的检索式:作者名="Jamile"
    题名 作者 年代 出处 被引量
1TGF-β/BMP signaling and other molecular events: regulation of osteoblastogenesis and bone formation显示文摘Transforming growth factor-beta(TGF-β)/bone morphogenetic protein(BMP) plays a fundamental role in the regulation of bone organogenesis through the activation of receptor serine/threonine kinases. Perturbations of TGF-β/BMP activity are almost invariably linked to a wide variety of clinical outcomes, i.e., skeletal, extra skeletal anomalies, autoimmune, cancer, and cardiovascular diseases. Phosphorylation of TGF-β(I/II) or BMP receptors activates intracellular downstream Smads, the transducer of TGF-β/BMP signals. This signaling is modulated by various factors and pathways, including transcription factor Runx2. The signaling network in skeletal development and bone formation is overwhelmingly complex and highly time and space specific.Additive, positive, negative, or synergistic effects are observed when TGF-β/BMP interacts with the pathways of MAPK, Wnt, Hedgehog(Hh), Notch, Akt/m TOR, and mi RNA to regulate the effects of BMP-induced signaling in bone dynamics. Accumulating evidence indicates that Runx2 is the key integrator, whereas Hh is a possible modulator, mi RNAs are regulators, and b-catenin is a mediator/regulator within the extensive intracellular network. This review focuses on the activation of BMP signaling and interaction with other regulatory components and pathways highlighting the molecular mechanisms regarding TGF-β/BMP function and regulation that could allow understanding the complexity of bone tissue dynamics.Md Shaifur Rahman Naznin Akhtar Hossen Mohammad Jamil Rajat Suvra Banik Sikder M Asaduzzaman 2015Bone Research2015,3,1:53
2Amelioration of Saline-Sodic Soils with Tillage Implements and Sulfuric Acid Application显示文摘Amelioration of saline-sodic soils through land preparation with three tillage implements (disc plow, rotavator and cultivator) each followed by application of sulfuric acid at 20% of gypsum (CaSO4·2H2O) requirement or no sulfuric acid application during crop growth period was evaluated in a field study for 2.5 years at three sites, i.e., Jhottianwala, Gabrika (Thabal), and Thatta Langar, in Tehsil Pindi Bhattian, Hafizabad District, Pakistan. Within 2.5 years, there was a decrease in the salinity parameters measured (electrical conductivity, pH, and sodium adsorption ratio), with a gradual increase in rice and wheat grain yields. It was observed that the disc plow, which not only ensured favorable yields but also helped improve soil health at all the three sites, was the most effective tillage implement. Also, application of sulfuric acid resulted in higher yields and promoted rapid amelioration of the saline-sodic soils.M.SADIQ G.HASSAN S. M. MEHDI N. HUSSAIN M. JAMIL 2007Pedosphere2007,17,2:28
3中国草莓属植物种质资源的研究、开发与利用进展显示文摘在对草莓属(Fragaria spp.)的全球分布、分类地位及栽培种凤梨草莓(Fragaria×ananassa Duch.ex Lamarck)的演化历史进行简要论述的基础上,对国内关于草莓属种质资源的研究、开发与利用进展进行了较详细的综述.对草莓种质资源的研究包括:中国草莓属种质资源的收集及对野生资源地理分布的调查,运用分子标记对草莓的亲缘关系进行鉴定,对部分种质进行核型分析(五叶草莓、森林草莓、纤细草莓、黄毛草莓、绿色草莓、东北草莓和西南草莓)及基因组大小估计(五叶草莓(红果、白果两种类型)、黄毛草莓、西南草莓、东北草莓、森林草莓和绿色草莓),对草莓种质的功能基因进行挖掘,草莓种质的生理生化(光合特性、活性成分及非生物胁迫)及遗传转化研究.关于草莓种质资源的开发与利用,包括新品种的选育及引种与驯化,育种方式有实生育种、杂交育种、诱变育种和生物技术育种,而最主要的育种方式是杂交育种.同时与国外的同类研究进行了比较分析,提出了在草莓属种质资源的研究、开发与利用过程中存在的问题并作出了相应的展望.苏代发 童江云 杨俊誉 陈杉艳 罗志伟 沈雪梅 赖泳红 Arslan Jamil 魏世杰 崔晓龙 2018云南大学学报(自然科学版)2018,40,6:22
4贻贝等六种软体动物磷脂的比较显示文摘对紫贻贝、栉孔扇贝、褶牡蛎、杂色蛤、缢蛏、毛蚶六种贝类的磷脂作了比较研究 ,对它们的出肉率、总脂、中性脂、极性脂、磷脂及其组分、脂肪酸的组成做了检测分析。结果表明 ,六种贝类的磷脂特性有一定的差异 ,牡蛎中磷脂酰肌醇含量特别高。心磷脂只在牡蛎和毛蚶中被检出 ,毛蚶中只含EPA ,而无DHA。六种贝类共同特点是磷脂酰胆碱与磷脂酰乙醇胺之和在 70林洪 吕青 Khalid Jamil 薛长湖 欧阳昌荣 王海英 2000水产学报2000,24,2:17
5草莓病毒病及其研究进展显示文摘对草莓镶脉病毒(strawberry vein banding virus, SVBV)、草莓斑驳病毒(strawberry mottle virus, SMoV)、草莓皱缩病毒(strawberry crinkle virus, SCV)、草莓轻型黄边病毒(strawberry mild yellow edge virus, SMYEV)和草莓潜隐环斑病毒(strawberry latent ringspot virus, SLRSV)等5种草莓主要病毒的分类、分布及生物学特性进行了综述.在此基础上,对草莓病毒的检测方法(指示植物检测、电镜检测、血清学检测和分子生物学检测)、传播媒介(蚜虫、蓟马、粉虱、线虫和真菌)、脱毒方法(高温脱毒、化学试剂脱毒、茎尖脱毒、高温-茎尖结合脱毒和超低温脱毒)及草莓病毒病的防治(脱毒苗运用、田间管理、抗病毒品种和阻断传播媒介)等方面进行了论述,以期为草莓生产中病毒病的防治提供科学依据.苏代发 童江云 杨俊誉 陈杉艳 罗志伟 沈雪梅 赖泳红 Jamil Arslan 魏世杰 崔晓龙 2019云南大学学报(自然科学版)2019,41,6:16
6中国对虾肌动球蛋白变性后ATPase活性的研究显示文摘在中国对虾肌动球蛋白(Aotomyosin)经冷冻变性和热变性后,对Ca2+-ATPase、Mg2+-ATPase活性及蛋白质溶解度进行了研究。冷冻变性之后,肌动球蛋白Ca2+-ATPase活性呈逐渐下降趋势,一般贮藏温度越低,活性降低越快。热变性之后,肌动球蛋白Ca2+或Mg2+-ATPase活性都随温度升高而下降,但肌动球蛋白Ca2+或Mg2+-ATPase活性在35℃有一急剧下降的拐点,并分别在45℃、40℃附近低到0。由于蛋白质的变性。林洪 王长峰 李兆杰 Khalid Jamil 1996青岛海洋大学学报(自然科学版)1996,26,4:14
7Impact of osteoporosis in dental implants:A systematic review显示文摘AIM: To assess the failure and bone-to-implant contact rate of dental implants placed on osteoporotic subjects. METHODS: Extensive examination strategies were created to classify studies for this systematic review. MEDLINE(via Pub Med) and EMBASE database were examined for studies in English up to and including May 2014. The examination presented a combination of the MeS H words described as follow: 'osteoporosis' or 'osteopenia' or 'estrogen deficiency' AND 'implant' or 'dental implant' or 'osseointegration'. Assessment of clinical and/or histological peri-implant conditions in osteoporosis subjects treated with titanium dental implants. The examination included a combination of the MeS H terms described as follow: 'osteoporosis' or 'osteopenia' or 'estrogen deficiency' AND 'implant' or 'dental implant' or 'osseointegration'.RESULTS: Of 943 potentially eligible articles, 12 were included in the study. A total of 133 subjects with osteoporosis, 73 subjects diagnosed with osteopenia and 708 healthy subjects were assessed in this systematic review. In these subjects were installed 367, 205, 2981 dental implants in osteoporotic, osteopenic and healthy subjects, respectively. The failure rate of dental implant was 10.9% in osteoporotic subjects, 8.29% in osteopenic and 11.43% in healthy ones. Bone-to-implant contact obtained from retrieved implants ranged between 49.96% to 47.84%, for osteoporosis and non-osteoporotic subjects. CONCLUSION: Osteoporotic subjects presented higher rates of implant loss, however, there is a lower evidence to strengthen or refute the hypothesis that osteoporosis may have detrimental effects on bone healing. Consequently, final conclusions regarding the effect of osteoporosis in dental implant therapy cannot be made at this time. There are no randomized clinical trial accessible for evaluation and the retrospectivenature of the evaluated studies shall be taken in account when interpreting this study.Gabriela Giro Leandro Chambrone Abrao Goldstein Jose Augusto Rodrigues Elton Zenóbio Magda Feres Luciene Cristina Figueiredo Alessandra Cassoni Jamil Awad Shibli 2015World Journal of Orthopedics2015,6,2:11
8Advances in fabrication of ceramic corundum abrasives based on sol–gel process显示文摘Corundum abrasives with good chemical stability can be fabricated into various free abrasives and bonded abrasive tools that are widely used in the precision machining of various parts.However,these abrasives cannot satisfy the machining requirements of difficult-to-machine materials with high hardness,high strength,and strong wearing resistance.Although superhard abrasives can machine the above-mentioned materials,their dressing and manufacturing costs are high.By contrast,ceramic corundum abrasives fabricated by sol–gel method is a costeffective product between conventional and superhard abrasives.Ceramic corundum abrasives exhibit self-sharpening and high toughness.In this review,the optimization methods of ceramic corundum abrasive properties are introduced from three aspects:precursor synthesis,particle shaping,and sintering.Firstly,the functional mechanism of seeds and additives on the microstructural and mechanical properties of abrasives is analyzed.Specifically,seeds can reduce the phase transition temperature and improve fracture toughness.The grain size and uniformly dense structure can be controlled by applying an appropriate amount of multicomponent additives.Then,the urgent need of engineering application and machinability of special shape ceramic corundum abrasives is reviewed,and three methods of abrasive shaping are summarized.The micromold replication technique is highly advanced and can be used to prepare functional abrasives.Additionally,the influence of a new sintering method,namely,two-step sintering technique,on the microstructural and mechanical performance of ceramic corundum abrasives is summarized.Finally,the challenge and developmental trend of the optimization of ceramic corundum abrasives are prospected.Baoteng HUANG Changhe LI Yanbin ZHANG Wenfeng DING Min YANG Yuying YANG Han ZHAI Xuefeng XU Dazhong WANG Sujan DEBNATH Muhammad JAMIL Hao Nan Li Hafiz Muhammad ALI Munish Kumar GUPTA Zafar SAID 2021Chinese Journal of Aeronautics2021,34,6:11
9Research advances on the multiple uses of Moringa oleifera: a sustainable alternative for socially neglected population显示文摘Moringa oleifera Lam(Moringaceae) is a plant with high nutritional and medicinal value. Native to India, it is now widely distributed throughout tropical and subtropical regions of the world. Its different parts are sources of proteins, vitamins and minerals and present different pharmacological and biotechnological potential. Moreover, M. oleifera seeds are widely used in water and effluent treatment, for their coagulation, flocculation and sedimentation properties, their ability of improving water quality, by reducing organic matter and microbial load, with special applicability in intensive animal production systems, such as aquaculture. In addition, due to its high nutritional value and several medicinal properties, this tree may act as a nutritional and medical alternative for socially neglected populations. In this context, this review gathers information on M. oleifera, emphasizing its chemical constituents, nutritional, pharmacological and antimicrobial properties, applications in the treatment of water effluents, and ecological and social aspects.Raimunda Samia Nogueira Brilhante Jamille Alencar Sales Vandbergue Santos Pereira Débora de Souza Collares Maia Castelo-Branco Rossana de Aguiar Cordeiro Célia Maria de Souza Sampaio Manoel de Araújo Neto Paiva Joao Bosco Feitosa dos Santos JoséJúlio CostaSidrim Marcos Fábio Gadelha Rocha 2017Asian Pacific Journal of Tropical Medicine2017,10,7:10
10草莓白粉病病原菌及分子防御机制的研究进展显示文摘草莓白粉病的发生具有逐年上升的趋势,已成为我国草莓产业发展的主要障碍之一.作者从草莓白粉病病原菌的种类与分类地位、生活史,以及草莓植株的分子防御机制等方面进行综述,并结合白粉病病原菌的致病机制和草莓植株的抗病机制进行了分析、讨论与展望,从而为有效控制草莓白粉病提供思路.杨俊誉 魏世杰 苏代发 陈杉艳 罗志伟 沈雪梅 赖泳红 Arslan Jamil 童江云 崔晓龙 2019云南大学学报(自然科学版)2019,41,4:10
11Cryogenic minimum quantity lubrication machining: from mechanism to application显示文摘Cutting fluid plays a cooling-lubrication role in the cutting of metal materials.However,the substantial usage of cutting fluid in traditional flood machining seriously pollutes the environment and threatens the health of workers.Environmental machining technologies,such as dry cutting,minimum quantity lubrication(MQL),and cryogenic cooling technology,have been used as substitute for flood machining.However,the insufficient cooling capacity of MQL with normal-temperature compressed gas and the lack of lubricating performance of cryogenic cooling technology limit their industrial application.The technical bottleneck of mechanical-thermal damage of difficult-to-cut materials in aerospace and other fields can be solved by combining cryogenic medium and MQL.The latest progress of cryogenic minimum quantity lubrication(CMQL)technology is reviewed in this paper,and the key scientific issues in the research achievements of CMQL are clarified.First,the application forms and process characteristics of CMQL devices in turning,milling,and grinding are systematically summarized from traditional settings to innovative design.Second,the cooling-lubrication mechanism of CMQL and its influence mechanism on material hardness,cutting force,tool wear,and workpiece surface quality in cutting are extensively revealed.The effects of CMQL are systematically analyzed based on its mechanism and application form.Results show that the application effect of CMQL is better than that of cryogenic technology or MQL alone.Finally,the prospect,which provides basis and support for engineering application and development of CMQL technology,is introduced considering the limitations of CMQL.Mingzheng LIU Changhe LI Yanbin ZHANG Qinglong AN Min YANG Teng GAO Cong MAO Bo LIU Huajun CAO Xuefeng XU Zafar SAID Sujan DEBNATH Muhammad JAMIL Hafz Muhammad ALI Shubham SHARMA 2021Frontiers of Mechanical Engineering2021,16,4:8
12Impact of land uses on water quality in Malaysia: a review显示文摘Land use changes in urbanization,industrialization,and agricultural processes will continue to have negative impacts on water quality at all scales.The impact of land use changes on water quality is generally studied by analyzing the relationships between land use and water quality indicators.Therefore,the purpose of this research was to review and analyze the main relationships between land use and water quality,as well as to visualize the major sources and processes of water quality pollution in Malaysia.To achieve our goal,we evaluated the significance of both land use and water quality attributes used in the past studies and correlated them to understand their relationship from another angle of view.The results revealed that 87%of the reviewed studies indicated urban land use as a major source of water pollution,while 82%indicated agricultural land use,77%indicated forest land use,and 44%indicated other land uses.However,the results of correlation analysis showed that agricultural and forest-related activities more affected water quality through their significant positive correlation with physical and chemical indicators of water quality,while urban development activities had a greater impact on water quality through altering hydrological processes such as runoff and erosion.These findings would provide decision-makers with useful information for managing water pollution processes rather than sources only.Moriken Camara Nor Rohaizah Jamil Ahmad Fikri Bin Abdullah 2019Ecological Processes2019,8,1:8
13Polymorphisms of MTHFR and susceptibility to oesophageal adenocarcinoma in a Caucasian United Kingdom population显示文摘AIM:To identify if methylene tetra-hydrofolatereductase(MTHFR)C677T polymorphisms are associated with oesophageal adenocarcnomas in a Caucasian population and to test whether folic acid and homocysteine levels are linked with cancer risk.METHODS:A case control study comprising of 58 non cancer and 48 cancer patients,MTHFR C667T genotyping was made and serum folate,homocysteine and vitamin B12 levels were made.Tumour stage,differentiation and survival was recorded.A P value of less than0.05 was taken to be significant.Theχ2 used to compare discrete variables and the Mantel-Cox was used to compare survival.A P value less than 0.05 was deemed to be significant.RESULTS:MTHFR polymorphisms is associated with an increased risk of several cancers.A link between MTHFR C677T polymorphisms and oesophageal squamous cell carcinoma and gastric cardia adenocarcinoma has been demonstrated in at risk Chinese populations.In a Western European population the role of the MTHFR gene has not previously been investigated in the setting of oesophageal adenocarcinoma.No association between folic acid levels and cancer patients was found.The unstable MTHFR 667 TT genotype occurred in 11%cancers and 7%controls,but statistical significance was not reached,homocysteine levels and folic acid levels were not affected,cancer patients with TT genotype displayed a trend for a shorter survival 7 mo vs 20 mo.Serum vitamin B12 levels were higher in the cancer group.The MTHFR 667 TT genotype is much lower than previous population studies.CONCLUSION:We conclude that serum folic acid and MTHFR polymorphisms are not associated with an increased risk of oesophageal adenocarcinoma,although cancers with unstable TT genotype may indicate a more aggressive disease course.Richard Keld Manyi Thian Chia Hau Jamil Sajid Narveen Kumar Yeng Ang 2014World Journal of Gastroenterology2014,20,34:8
14新时期国潮视域下文化赋能品牌创新途径研究显示文摘目的以国潮传统文化复兴现象分析入手,探究新时代背景下文化内涵赋能品牌的多重途径,进一步为本土品牌形象构建提供思路。方法梳理国潮热点现象背后的成因,探究文化赋能品牌的表征与内涵,总结新时代品牌构建的文化元素提取与创新机制的内在关联,完善品牌文化价值挖掘和表达的创新途径。结论品牌有复杂多样的特性,通过“外延化、跨界化、情景化、娱乐化”等设计表达途径进行文化赋能,不但能深度提升品牌文化价值,促发情感共鸣,更彰显文化自信,也为实现民族复兴伟大目标,为品牌形象乃至国家形象“自塑”提供新的思路。白雪 Azhar Bin Abd Jamil 2022包装工程2022,43,14:7
15采用海泡石纳米颗粒控制膨润土基钻井液性能显示文摘提出在膨润土基钻井液中添加海泡石纳米颗粒来控制其性能,并通过实验研究了不同温度压力条件下海泡石纳米颗粒对膨润土基钻井液流变性、滤失性等性能的影响。测量了添加海泡石纳米颗粒前后膨润土基钻井液在不同温度压力条件下的塑性黏度、动切力和滤失量,并在储集层温度压力条件下对添加海泡石纳米颗粒前后的膨润土基钻井液进行了岩心驱替实验,对比了钻井液的滤失量及对地层的伤害程度。结果表明:添加海泡石纳米颗粒可以提高清水和盐水膨润土基钻井液的塑性黏度和动切力;海泡石纳米颗粒可以在较大的温度和压力范围内特别是高温高压条件下保持钻井液流变性的稳定;储集层温度压力条件下,海泡石纳米颗粒降低了钻井液的滤失量,抑制了砂岩岩心渗透率降低。海泡石纳米颗粒是一种理想的膨润土基钻井液添加剂。AL-MALKI Needaa POURAFSHARY Peyman AL-HADRAMI Hamoud ABDO Jamil 2016石油勘探与开发2016,43,4:7
16Critical analysis of the literature investigating urogenital function preservation following robotic rectal cancer surgery显示文摘AIM To analyses the current literature regarding the urogenital functional outcomes of patients receiving robotic rectal cancer surgery. METHODS A comprehensive literature search of electronic databases was performed in October 2015. The following search terms were applied: 'rectal cancer' or 'colorectal cancer' and robot* or 'da Vinci' and sexual or urolog* or urinary or erect* or ejaculat* or impot* or incontinence. All original studies examining the urological and/or sexual outcomes of male and/or female patients receiving robotic rectal cancer surgery were included. Reference lists of all retrieved articles were manually searched for further relevant articles. Abstracts were independently searched by two authors. RESULTS Fifteen original studies fulfilled the inclusion criteria. A total of 1338 patients were included; 818 received robotic, 498 laparoscopic and 22 open rectal cancer surgery. Only 726(54%) patients had their urogenital function assessed via means of validated functional questionnaires. From the included studies, three found that robotic rectal cancer surgery leads to quicker recovery of male urological function and five of male sexual function as compared to laparoscopic surgery. It is unclear whether robotic surgery offers favourable urogenital outcomes in the long run for males. In female patients only two studies assessed urological and threesexual function independently to that of males. In these studies there was no difference identified between patients receiving robotic and laparoscopic rectal cancer surgery. However, in females the presented evidence was very limited making it impossible to draw any substantial conclusions. CONCLUSION There seems to be a trend towards earlier recovery of male urogenital function following robotic surgery. To evaluate this further, larger well designed studies are required.Sofoklis Panteleimonitis Jamil Ahmed Mick Harper Amjad Parvaiz 2016World Journal of Gastrointestinal Surgery2016,8,11:7
17温室中患白粉病与健康草莓植株根际原核生物群落的比较研究显示文摘【目的】比较温室大棚中患白粉病的草莓(DRZ)与健康草莓(HRZ)植株根际土壤原核生物(细菌和古菌)群落的多样性与结构差异。【方法】基于土壤原核生物16S rRNA基因V3~V4变异区通用引物序列,应用高通量测序技术进行比较分析。【结果】在97%的相似水平下2个样本共获得OTU个数为2631,涵盖了2域2界39门82纲161目326科600厲的原核生物;与健康样本相比,患病土壤原核生物的OTU数目及多样性指数均较低;在门分类水平上,变形菌门、放线菌门、酸杆菌门和拟杆菌门均为2个样本的优势菌群,两者群落种类大致相同,但群落相对丰度均发生显著变化(P<0.01),同时首次发现了患病植株根际土壤中古菌的门类相对丰度显著高于健康植株;在属分类水平上,分析了2个样本中相对丰度Top 50的菌群,表明原核生物群落结构和相对丰度均发生了显著变化(P<0.01),其中假单胞菌属、链霉菌属和“norank类群”可能是潜在的拮抗菌类群,沃尔巴克氏体属和立克次体属可能是寄生于温室草莓白粉病传播媒介中的类群。【结论】阐明了温室中患白粉病草莓与健康草莓根际原核生物的多样性变化,并解释了病害发生和传播的原因及草莓食用的安全问题,对防控白粉病的发生和快速筛选草莓白粉病拮抗菌提供理论依据。杨俊誉 魏世杰 苏代发 张振荣 陈杉艳 罗志伟 沈雪梅 赖泳红 Arslan Jamil 童江云 崔晓龙 2020西南农业学报2020,33,1:7
18Milling Force Model for Aviation Aluminum Alloy: Academic Insight and Perspective Analysis显示文摘Aluminum alloy is the main structural material of aircraft,launch vehicle,spaceship,and space station and is processed by milling.However,tool wear and vibration are the bottlenecks in the milling process of aviation aluminum alloy.The machining accuracy and surface quality of aluminum alloy milling depend on the cutting parameters,material mechanical properties,machine tools,and other parameters.In particular,milling force is the crucial factor to determine material removal and workpiece surface integrity.However,establishing the prediction model of milling force is important and difficult because milling force is the result of multiparameter coupling of process system.The research progress of cutting force model is reviewed from three modeling methods:empirical model,finite element simulation,and instantaneous milling force model.The problems of cutting force modeling are also determined.In view of these problems,the future work direction is proposed in the following four aspects:(1)high-speed milling is adopted for the thin-walled structure of large aviation with large cutting depth,which easily produces high residual stress.The residual stress should be analyzed under this particular condition.(2)Multiple factors(e.g.,eccentric swing milling parameters,lubrication conditions,tools,tool and workpiece deformation,and size effect)should be considered comprehensively when modeling instantaneous milling forces,especially for micro milling and complex surface machining.(3)The database of milling force model,including the corresponding workpiece materials,working condition,cutting tools(geometric figures and coatings),and other parameters,should be established.(4)The effect of chatter on the prediction accuracy of milling force cannot be ignored in thin-walled workpiece milling.(5)The cutting force of aviation aluminum alloy milling under the condition of minimum quantity lubrication(mql)and nanofluid mql should be predicted.Zhenjing Duan Changhe Li Wenfeng Ding Yanbin Zhang Min Yang Teng Gao Huajun Cao Xuefeng Xu Dazhong Wang Cong Mao Hao Nan Li Gupta Munish Kumar Zafar Said Sujan Debnath Muhammad Jamil Hafiz Muhammad Ali 2021Chinese Journal of Mechanical Engineering2021,34,1:7
19Characterization of lipid parameters in diabetic and non-diabetic atherosclerotic patients显示文摘背景 &在类脂化合物侧面不安和糖尿病之间的 ObjectiveThe 关系联系了复杂并发症长是兴趣的一个区域。Dyslipidemia 在糖尿病的病人是心血管的病态和死亡的一个有势力预言者。现在的学习的目的是在百和 76 个个人(45-75 年年龄) 参予了的糖尿病、非糖尿病的动脉粥样硬化患者 patients.MethodsFive 调查在老化和类脂化合物侧面之间的关系这研究。在这些之中, 192 正在有糖尿病 mellitus 和动脉粥样硬化的历史。个人们在健康的底上被分类(正常、非糖尿病的动脉粥样硬化,糖尿病的动脉粥样硬化) 并且年龄(45-55 年, 56-65 年,和 66-75 年) 。所有参加者受到象详细历史一样的过程,为 fasting 血糖的生物化学的分析,血红素 A1c,全部的胆固醇(TC ) , triglycerides (TG ) ,低密度的脂蛋白 --(LDL ) ,很低密度的脂蛋白(VLDL ) 和高密度的脂蛋白(HDL ) 。所有这些参数在所有三个年龄组的糖尿病、非糖尿病的动脉粥样硬化患者病人之间被比较。TC/HDL 和 LDL/HDL 也是有的 calculated.ResultsDiabetic 动脉粥样硬化患者个人(男性和女性) 与非糖尿病的动脉粥样硬化患者和正常控制个人相比的 HDL 的 TC, TG, LDL, VLDL 和底层高级。在所有三个年龄组之中,脂蛋白反常被观察比男性在女性更经常。在与年龄相比的糖尿病的动脉粥样硬化患者题目 TC/HDL 和 LDL/HDL 比率有重要增加,性别随两性的年龄的增加匹配非糖尿病的动脉粥样硬化患者和 dyslipidemia 增加的正常 control.ConclusionsDegree。女性是对糖尿病的 dyslipidemia 敏感的更多并且因此有与增加年龄开发动脉粥样硬化的更多的风险。Fatima Ali Hassan Jamil Sanam Saiqa Anwar Nadia Wajid 2015Journal of Geriatric Cardiology2015,12,1:6
20Machining deformation of single-sided component based on finishing allowance optimization显示文摘Owing to reliability and high strength-to-weight ratio,large thin-walled components are widely used in the aviation and aerospace industry.Due to the complex features and sequence involved in the machining process of large thin-walled components,machining deformation of component is easy to exceed the specification.In order to address the problem,it is important to retain the appropriate finishing allowance.To find the overall machining deformation,finishing allowance-induced deformation(web finishing allowance,sidewall finishing allowance)and initial residual stress-induced deformation were considered as major factors.Meanwhile,machined surface residual stress-induced deformation,clamping stress-induced deformation,thermal deformation,gravity-induced deformation and inertial force-induced deformation were neglected in the optimization model.Six-peak Gaussian function was introduced to fit the initial residual stress.Based upon the obtained function of initial residual stress,a deformation prediction model between initial residual stress and finishing allowance was established to attain the finishing allowanceinduced deformation.In addition,linear programming optimization model based on the simplex algorithm was developed to optimize the overall machining deformation.Results have concluded that the overall machining deformation reached the minimum value when sidewall finishing allowance and web finishing allowance varied between 1 and 2 mm.Additionally,web finishing allowance-induced deformation and sidewall finishing allowance-induced deformation were1.05 mm and 0.7 mm.Furthermore,the machining deformation decreased to 0.3–0.38 mm with the application of optimized finishing allowance allocation strategy,which made 39–56%reduction of the overall machining deformation compared to that in conventional method.Xiaoyue LI Liang LI Yinfei YANG Guolong ZHAO Ning HE Xiaocen DING Yaowen SHI Longxin FAN Hui LAN Muhammad JAMIL 2020Chinese Journal of Aeronautics2020,33,9:6
返回顶部 每页显示:
共44页 首页 上一页 第1页 下一页 末页 /44 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费